This study is designed to evaluate the safety, tolerability, PKharmacokinetic profile and treatment effect of pamiparib in Chinese participants with advanced high-grade ovarian cancer (including fallopian cancer or primary peritoneal cancer) and triple negative breast cancer in phase I, and to evaluate the efficacy and safety of pamiparib in Chinese participants with recurrent epithelial ovarian cancer (including fallopian cancer or primary peritoneal cancer), harboring germline breast cancer susceptibility gene 1/gene 2 (BRCA1/2) mutation in phase II.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
128
Pamiparib is provided as oral capsules
Cancer Hospital Chinese Academy of Medical Sciences
Beijing, Beijing Municipality, China
Beijing Cancer Hospital
Beijing, Beijing Municipality, China
Henan Cancer Hospital
Zhengzhou, Henan, China
Hunan Cancer Hospital
Changsha, Hunan, China
Fudan University Shanghai Cancer Center
Shanghai, Shanghai Municipality, China
Zhejiang Cancer Hospital
Hangzhou, Zhejiang, China
Phase 1: Number of Participants With Treatment- Emergent Adverse Events (TEAE) and Serious Adverse Events (SAE)
A TEAE is defined as an adverse event (AE) that had an onset date on or after the first dose of study drug up to 30 days following study drug discontinuation or was worsening in severity from baseline (pretreatment).
Time frame: From first dose to within 30 days of last dose of pamiparib (approximately 36 months)
Phase 1: Number of Participants With Clinically Significant Abnormalities in Physical Examinations and Electrocardiograms (ECGs)
Time frame: From first dose to within 30 days of last dose of pamiparib (approximately 36 months)
Phase 2: Objective Response Rate (ORR) in High Grade Ovarian Cancer (HGOC) Both PSOC and PROC as Assessed by Independent Radiology Review Committee (IRC)
ORR is defined as the percentage of participants with confirmed Complete Response or Partial Response
Time frame: Up to approximately 2 years and 8 months
Phase I: Maximum Observed Plasma Concentration (Cmax)
Time frame: Cycle 1 Day 1 and Day 10 of 21-day cycle: pre-dose, 0.5, 1, 2, 4, 6,9 and 12 hours post dose
Phase I: Time to Reach Cmax (Tmax)
Time frame: Cycle 1 Day 1 and Day 10 of 21-day cycle: pre-dose, 0.5, 1, 2, 4, 6,9 and 12 hours post dose
Phase I: Terminal Elimination Half-life (t1/2)
Time frame: Cycle 1 Day 1 of 21-day cycle: pre-dose, 0.5, 1, 2, 4, 6,9 and 12 hours post dose
Phase I: Apparent Clearance (CL/F)
Time frame: Cycle 1 Day 1 of 21-day cycle: pre-dose, 0.5, 1, 2, 4, 6,9 and 12 hours post dose
Phase 1: Area Under the Plasma Concentration-time Curve From Time Zero Extrapolated to Infinity (AUCinf)
Time frame: Cycle 1 Day 1 of 21-day cycle: pre-dose, 0.5, 1, 2, 4, 6,9 and 12 hours post dose
Phase I: Apparent Volume of Distribution During Terminal Phase (Vz/F)
Time frame: Cycle 1 Day 1 of 21-day cycle: pre-dose, 0.5, 1, 2, 4, 6,9 and 12 hours post dose
Phase I: Confirmed Objective Response Rate (ORR) as Assessed by the Investigator Per RECIST v1.1
ORR is defined as the percentage of participants with confirmed Complete Response (CR) or Partial Response (PR)
Time frame: Up to approximately 36 months
Phase 1: Disease Control Rate (DCR) Assessed by the Investigator Per RECIST v1.1
DCR is defined as the percentage of participants with best overall response (BOR) of CR, PR and stable disease (SD)
Time frame: Up to approximately 36 months
Phase I: Clinical Benefit Rate (CBR) Assessed by the Investigator Per RECIST v1.1
CBR is defined as percentage of participants with best overall response of CR, PR and stable disease (SD)≥24 weeks
Time frame: Up to approximately 36 months
Phase 1: Duration of Response (DOR) as Assessed by Investigator Per RECIST v1.1
DOR is defined as the time from the first determination of a confirmed overall response until the first documentation of progression or death, whichever comes first
Time frame: Up to approximately 36 months
Phase I : Progression Free Survival (PFS)
PFS is defined as the time from first dose of study medication to the first documented disease progression or death due to any cause, whichever occurs first
Time frame: Up to approximately 36 months
Phase 2: Objective Response Rate (ORR) by Investigator Per RECIST v1.1
ORR is defined as the percentage of participants with confirmed Complete Response or Partial Response
Time frame: Up to approximately 3 years and 8 months
Phase 2: Disease Control Rate by Investigator Per RECIST v1.1
DCR is defined as the percentage of participants with best overall response (BOR) of CR, PR and stable disease (SD)
Time frame: Up to approximately 3 years and 8 months
Phase 2: Clinical Benefit Rate by Investigator Per RECIST v1.1
CBR is defined as percentage of participants with best overall response of CR, PR and stable disease (SD)≥24 weeks
Time frame: Up to approximately 3 years and 8 months
Phase 2: Carcinoma Antigen-125 (C(A-125) Response Rate by Gynecologic Cancer Inter Group (GCIG )Criteria
CA-125 response is defined the percentage of participants with at least 50% reduction in CA-125 levels from pre-treatment sample
Time frame: Up to approximately 3 years and 8 months
Phase 2: Duration of Response as Assessed by Investigator Per RECIST v1.1
DOR is defined as the time from the first determination of a confirmed overall response until the first documentation of progression or death, whichever comes first
Time frame: Up to approximately 3 years and 8 months
Phase 2: Progression Free Survival as Assessed by the Investigator Per RECIST v1.1
PFS is defined as the time from first dose of study medication to the first documented disease progression or death due to any cause, whichever occurs first
Time frame: Up to approximately 3 years and 8 months
Phase 2: Overall Survival (OS) as Assessed by Investigator
OS is defined as time from the first dose of study medication to the date of death due to any cause
Time frame: Up to approximately 3 years and 8 months
Phase 2: Number of Participants With Treatment- Emergent Adverse Events and Serious Adverse Events
A TEAE is defined as an adverse event (AE) that had an onset date on or after the first dose of study drug up to 30 days following study drug discontinuation or was worsening in severity from baseline (pretreatment). All clinically significant abnormalities in physical examinations, laboratory tests and ECGs are reported as adverse events (AE) in the AE section.
Time frame: From first dose to within 30 days of last dose of pamiparib (approximately 3 years and 8 months)
Phase 2: Area Under the Plasma Concentration-time Curve From 0 to 12 Hours Post-dose (AUC0-12)
Time frame: Cycle 1 Day 1 and Cycle 2 Day 1: pre-dose, 0.5, 1, 2, 4, 6,9 and 12 hours post dose
Phase 2: Maximum Observed Plasma Concentration (Cmax)
Time frame: Cycle 1 Day 1 and Cycle 2 Day 1: pre-dose, 0.5, 1, 2, 4, 6,9 and 12 hours post dose
Phase 2: Time to Reach Cmax (Tmax)
Time frame: Cycle 1 Day 1 and Cycle 2 Day 1: pre-dose, 0.5, 1, 2, 4, 6,9 and 12 hours post dose
Phase 2: Area Under the Plasma Concentration-time Curve From 0 to the 9 Hours Post-dose (AUC0-9)
Time frame: Cycle 1 Day 1 and Cycle 2 Day 1: pre-dose, 0.5, 1, 2, 4, 6,9 and 12 hours post dose
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